The oldest test cricketer to make a debut in a test match is J Southerton of England. He made his test debut at the age of 49 years and 119 days against Australia at Melbourne in 1876-77, which is also the first ever test match played

The oldest test cricketer is W Rhodes of England. He played his last test match at the age of 52 years and 165 days against West Indies at Kingston in 1929-30 {age being computed on the last day of the test match}